01/30/2019
Great info!
WORTH READING!! Some sage advice from an expert... DDC Racing discusses the proper steps to making sure your sprocket is mounted properly and stays that way. If any of you have had a loose sprocket damage a hub or worse, you know how expensive and just plain dangerous it can be. Give DDC Racing a follow and check out their made in the USA drive components!
Recently there have been some ads running here on Instagram advertising a new sprocket-bolt wrench. The wrench looks like a functional tool, however, one of the captions in the advertisement reads “easily check your sprocket bolts” ....PLEASE DO NOT “check” your sprocket-bolt torque by putting a wrench on them and giving a tug. In doing so, you will most certainly break the LocTite bond. Instead, it’s a great idea to use something like Cross-Check or simply a Sharpie to mark them as pictured. Check the marks before each ride. If you ever see the marks separate, then you have a problem. Should this occur, the best thing to do is replace all of your bolts with new ones and torque to factory specs. (Always use thread-locker, at least medium strength or greater) Sprocket bolts should be made from Metic Class 10.9 Steel which is the equivalent of a US Grade 8 bolt. Most bikes have a recommend sprocket bolt torque value of someplace between 26-30 Ft lbs. This information can be found in your bikes service manual. If in doubt torque to 28 at a minimum, and 30 at a maximum. It’s also good to know that real LocTite cures anaerobically and needs time to set up whereas many thread-locking agents are essentially just glue. Always read your labels!
